... COMPANY C1 SUM(A,COEFF(PLANTCAP,A) *X(A) =L=RHS(PLANTCAP); C2 SUM(A,COEFF(DISCLIMIT,A) *X(A) =L=RHS(DISCLIMIT); C3 SUM(A,COEF(MAXWASTE,A) *X(A) =G=RHS(MAXWASTE); PROFIT SUM(A,CC(A) *X(A )) =E= MAXBENEFIT; ... (A, C2 SUM (A, C3 SUM (A, PROFIT SUM COEFF (' PLANTCAP', A)*X(A) =L= RHS('PLANTCAP '); COEFF (' DISCLIMIT', A)*X(A) =L=RHS('DISCLIMIT '); COEFF (' MAXWASTE', A)*X(A) =G=RHS('MAXWASTE '); (A, CC (A) ... -0 ,8 -1 0 1 v0 0 0 -1 0 y2 0 -0 ,5 0,5 -1 1,5 y1 (d) u2 (c) v1 (b) v0 -1 -0 ,4 0,4 0,2 2,2 Pha II: Min y0 = 10 y1 + 4y2 (e) y0 -1 0 -4 0 0 y2 -0 ,5 0,5 -1 1,5 -1 -0 ,4 0,4 0,2 2,2 y0 0 -1 0 -6 6* -2 ...